diff options
| author | Andrew Banman <[email protected]> | 2017-02-17 11:07:49 -0600 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-03-01 10:28:20 +0100 |
| commit | 1b17c6df852851b40c3c27c66b8fa2fd99cf25d8 (patch) | |
| tree | 5a1c2a7935fa7c12628fd8ef5414c36b91908094 | |
| parent | 2a4d0c627f5374f365a873dea4e10ae0bb437680 (diff) | |
x86/platform/uv/BAU: Fix HUB errors by remove initial write to sw-ack register
Writing to the software acknowledge clear register when there are no
pending messages causes a HUB error to assert. The original intent of this
write was to clear the pending bits before start of operation, but this is
an incorrect method and has been determined to be unnecessary.
Signed-off-by: Andrew Banman <[email protected]>
Acked-by: Mike Travis <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/platform/uv/tlb_uv.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 766d4d3529a1..f25982cdff90 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -1847,7 +1847,6 @@ static void pq_init(int node, int pnode) ops.write_payload_first(pnode, first); ops.write_payload_last(pnode, last); - ops.write_g_sw_ack(pnode, 0xffffUL); /* in effect, all msg_type's are set to MSG_NOOP */ memset(pqp, 0, sizeof(struct bau_pq_entry) * DEST_Q_SIZE); |